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Finding the Fourth Proportional to 254,351.28, 381,593.44 and 147,632.64

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Solution

The fourth proportional to 254,351.28, 381,593.44 and 147,632.64 is: 221,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,351.28 : 381,593.44 = 147,632.64 : x
  2. Step 2: Convert to fraction form
    254,351.28/381,593.44 = 147,632.64/x
  3. Step 3: Cross multiply
    254,351.28x = 381,593.44 × 147,632.64
  4. Step 4: Simplify right side
    254,351.28x = 56,335,646,953.88
  5. Step 5: Solve for x
    x = 56,335,646,953.88/254,351.28
  6. Step 6: Final answer
    x = 221,487.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.